July 9, 2018 AT 11:04 pm

CircuitPython 3.0.0 Released! — @adafruit @CircuitPython

3.0.0 is the latest major revision of CircuitPython and features new support for the SAMD51 (aka M4) and preliminary support for the nRF52 BLE chipset. It also features better memory utilization so more can be loaded in the same amount of space.

General release

We believe this release is stable and relatively bug free. So, please try this before trying 2.x. If you find issues please file an issue.

The mpy format has changed so make sure and use a 3.0.0 bundle for libraries.

Non-standard array types inherited from MicroPython are no longer supported in favor of matching CPython. Thanks to @jepler.

audioio.AudioOut now takes the sample to playback in play rather than in the constructor. (This enables playback through other outputs such as audiobusio.I2SOut.) It also means you only need one AudioOut for multiple samples.

PDMIn‘s frequency property has been renamed to sample_rate.

Trinket M0 and Gemma M0 builds no longer include pin objects for all microcontroller pins. They only include those used by the board. Thanks to @rhooper

Auto-reload no longer uses KeyboardInterruptException but rather its own ReloadException. Thanks to @rhooper

Troubleshooting

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.